Household Casebearer

Indoor environments, particularly on walls in humid houses and tropical climates.

Larvae eat spider webs, silk, and organic materials like wool, fur, or human hair.

Larvae live inside a flattened, spindle-shaped case made of silk and debris. They can extend their heads from either end of the case to move or feed.

They are considered minor household pests as they can damage natural fibers (wool, rugs, clothing). They are harmless to humans and do not bite.